Ozone pollution tied to cardiovascular health: Study

Exposure to ozone, a powerful greenhouse gas and a widespread air pollutant in many major cities, may cause cardiovascular disease such as heart attack, high blood pressure and stroke, according to a new study of Chinese adults. Ozone is a pollutant formed through a chemical reaction that occurs when sunlight …

Poor sleep may point to onset of Alzheimer’s disease: study

Poor, disrupted sleep may indicate the risk of developing Alzheimer’s disease in people who are otherwise healthy, a study warns. Researchers from University of Wisconsin-Madison in the US found that people who reported worse sleep quality, more sleep problems and daytime sleepiness had more biological markers for Alzheimer’s disease in their …

Marijuana may up psychosis risk in teenagers: Study

Daily consumption of marijuana may increase an adolescent’s risk of having recurrent psychotic-like experiences by 159 per cent, according to a new study. The psychotic-like experiences include the experiences of perceptual aberration — for example feeling that something external is part of their body — and thinking that they have …